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US 7,248,690 B2Granted
Voice signal clipping circuit and telephone set therewith
AssigneeKabushiki Kaisha Toshiba
InventorsYoshihiro Uto, Toshiaki Takahashi, Takeshi Horiuchi
Life of this patent
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Abstract
A voice signal clipping circuit comprising, an amplifier which amplifies an input voice signal to a permissible level and a clipper which clips an amplitude component in excess of the permissible level from an output signal from the amplifier.
Claims12
A voice signal clipping circuit comprising:
- an amplifier which amplifies an input voice signal to a permissible level;
- and
- a clipper which clips an amplitude component larger than a value of a higher limit and an amplitude component smaller than a value of a lower limit from an output signal from the amplifier, the higher limit being set to a value close to an analog power source level of the amplifier and the lower limit being set to a value close to a ground level of the amplifier.
A telephone set comprising:
- an amplifier which amplifies an input voice signal to a permissible level;
- and
- a clipper which clips an amplitude component larger than a value of a higher limit and an amplitude component smaller than a value of a lower limit from an output signal from the amplifier, the higher limit being set to a value close to an analog power source level of the amplifier and the lower limit being set to a value close to a ground level of the amplifier.
Dependencies are inferred from the claim text.